I tried to listen to what she said to him, but I couldn't get it. I re-watched that until I started laughing because of Gun's voice at 0:51. LOL Any way, here's all I got for GunKim.
@0:12-0:50
Jackie: Today you tease Kim so much
Gun: Oh, yes, because today Mark is not here, he went to Japan so I got a chance to tease her a bit, our first time working together.
Jackie: Ask for the scene, "Won't have the chance..." reach your hand out
Gun: "Won't have the chance....the chance..." (laughs) I forgot the lyrics. I just invited her onto the stage and dance a little at the end of the song.
Jackie: Nong is adorable huh?
Gun: Very cute (adorable) just sending out hand signs, my heart cries, If it was Mark he would totally Fin.
Jackie: Aren't you afraid Mark will get mad?
Gun: No, I'm not afraid, I was just teasing for fun, Love na.
Jackie: It was fun getting to dance with Kim?
Gun: Yes.